I feel hungry and eat but then stomach pain sets in?

Stomach pain: Several things can cause stomach pain when you eat. The most common ones are gastric ulcers, pancreatitis, bowel obstruction and more rarely ischemic bowel syndrome. Please see a local physician to be evaluated. If pain is severe and associated with nausea, vomiting, you should seek medical care urgently.

Stomach Pain: While there is usually no significant cause of it, stomach pain after eating can be a sign of an ulcer. Another possible cause is that your blood vessels are blocked (as in the case of coronary artery disease). Indigestion and food poisoning are two additional causes for stomach pain after eating. The most dangerous possibility is that you have stomach cancer. See your doctor asap.